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Re: Detroit Locker
[Re: 70duster340]
#472888
09/20/09 12:11 AM
09/20/09 12:11 AM
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Joined: Jan 2003
Posts: 27,453
So Cal
autoxcuda
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Quote:
That was my hope as well, DirectSubjection. However, I have had no luck so far in locating any number that even resembles such a part number. I get the impression that this isn't a soft-lock unit, but one of the older lockers. I have already visited Eaton's website, but didn't locate anything there, either. 
If it's an old locker, it probably is a old circle track piece. Then you'd have to assumed it's been raced on. So who knows what condition it's in. I think they are tough to inspect without taking them apart.  You can change the springs in them to effect harshness to some relative degree.
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Re: Detroit Locker
[Re: 70duster340]
#472892
09/20/09 06:16 PM
09/20/09 06:16 PM
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Joined: Jan 2003
Posts: 1,443
70duster340
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,443
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Re: Detroit Locker
[Re: 70duster340]
#472893
09/20/09 06:17 PM
09/20/09 06:17 PM
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Joined: Jan 2003
Posts: 1,443
70duster340
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,443
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Re: Detroit Locker
[Re: DoctorDiff]
#472895
09/20/09 08:57 PM
09/20/09 08:57 PM
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Joined: Jan 2003
Posts: 27,453
So Cal
autoxcuda
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Quote:
That is an old one. Probably out of the '60s.
What would you say, 90% chance it was used for circle track car??
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Re: Detroit Locker
[Re: scratchnfotraction]
#472900
09/20/09 11:54 PM
09/20/09 11:54 PM
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Joined: Jan 2003
Posts: 27,453
So Cal
autoxcuda
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Quote:
300 mph funny cars and dragsters use a 2.76 gear and lots of HP 
Did those run lockers?? I would think they would have all run spools?? (I'm not a drag guy)
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Re: Detroit Locker
[Re: 70duster340]
#472901
09/21/09 12:05 AM
09/21/09 12:05 AM
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Joined: Jan 2003
Posts: 27,453
So Cal
autoxcuda
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Quote:
Thanks for the posts so far. So Dr. Diff, is it still a locker? And as for the circle track question, it had a ring gear attached that was a 2.76 ratio, at least according to the numbers on the side of the ring gear. It also had the part number of 2070684 atamped on it. I tried to do a search, but came up with nothing. I am assuming by the part number that it is a Mopar part number. Not knowing much about circle track racing (ok, knowing absolutely nothing!!!), I wouldn't think that a 2.76 would be a good gearing for any racing application. If I'm wrong, please feel free to correct me!
Per my 1974 Petty Enterprises Catalog....
2.76:1 Ratio part number 2070690 (that is the part number you order. Many time the casting number or stamped number on parts are a different number but close). I would assume a 2.76 is a high banked speedway gear.
Ass'y, Differential Ratchet (No-Spin) p/n P3690151
FWIW...The picture in the PE Catalog of the Detroit Locker looks just like the one posted above.
Last edited by autoxcuda; 09/21/09 01:52 AM.
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Anybody???
